Configuring Tomcat can be tricky as it envolves more than one Java process: One to start and stop the server and the actual server. Make sure that the agent is configured for the actual server and not just for the controller.

In the JaCoCo report page there is a link "Sessions" on the top right corner which lists all classes seen by the agent at runtime. Can you please check whether your app classes are listed or is it just tomcat internals? In the latter case you probably attached the agent to the wrong process.

Regards,
-marc

On 01.06.16 06:57, Hyunil Shin wrote:
Issue
- tomcat + jacoco agent does not report coverage correctly.
- exec file was generated, but when I checked, code which is tested is reported as unused.

When I ran mvn jetty:run (no configuration jacoco in pom.xml, MAVEN_OPTS) + jacoco agent, it reported correctly.

To compare two exec files above, the size is different.
Correct one is bigger.

any idea to handle this?

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